Grain-binder.



PATENTED JAN. 7, 1908.

3 SHEETS-SHEET 1.

A. M. HEMBERG. GRAIN BINDER.

APPLIoA'rIoN FILED JULY1a.19ov.

No. 875,710. PATENTED JAN. 7, 1908.

A. M. HEMBERG.

GRAIN BINDER.

APPLICATION FILED JULY13.190'1.

3 SHEETS-SHEET 2.

464 s* I 4f .WM/MW MMWWQ ."Hl' MORRIS PITKRS CQ., WAiNINGTQII, D. C. l

No. 875,710. PATENTED JAN. 7, 1908.

A. M. HBMBBRG.

' GRAIN BINDER.

APPLIoATIoN FILED JULY1a.19o7.

. 3 SHEETS-SHEET 3.

Mfgwff/ www WM ms Manifs PETERS cc., wm 1 AMANDUS M. HEMBERG, OFMINNEAPOLIS, MINNESOTA.

GRAIN -B INDER.

Specification of Letters Patent.

Patented Jan. '7, 1908.

Application led July 13|1907l Serial No. 383,649.

T0 all whom it may concern.'

Be it known that I, AMANDUs M. HEM- BERG, a citizen of the UnitedStates, residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements inGrain-Binders, and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention has for its object to provide an improved grain binder, andto this end it consists of the novel devices and combinations of deviceshereinafter described and defined in the claims. The improved binder,while capable of general use, was especially designed for application toa harvester of the character set forth and claimed in my U. S. LettersPatent No. 792,592, of date June 20, 1905.

The invention is illustrated in the accompanying drawings, wherein likecharacters indicate like parts throughout the several views. i

Referring to these drawings, Figure 1 is a view in front elevation, withsome parts broken away, showing my improved binder and a portion of aharvester to which the same is applied. Fig. 2 is a left side elevationof the parts shown in Fig. 1, some parts being broken away and someparts being sectional. Fig. 3 is a detail partly in side e evation andpartly in section, showing on an enlarged scale a so-called tripintercepting latch and coperatingparts. Fig. 4 is a detail viewin plan,showing the one-way clutch mechanism of the binder. Fig. 5 is a detailshowing the cooperating half clutch members of the oneway clutch. Fig. 6is a section taken approximately on the line a 9c of Fig. 4. Fig. 7 is adiagrammatic view showing the relative lengths of the cranks on thebinder shaft and on the needle shaft. Fig. S is a detail in section,taken on the line as 008 of Fig. 4. Fig. 9 is a detail in section takenon the line 939 ai@ of Fig. 2. Fig. 10 is a section taken on the line9cm x10 of Fig. 2, some parts being broken away and Fig. 11 is askeleton plan view, showing the relative arrangement of the needle andtripper shafts.

As illustrated in the drawings, the binder frame is made as a part ofthe harvester frame, and of the parts thereof for the purposes of thiscase it is desirable to note the long parallel platform bars 1, to theleft hand ends of which, as viewed in Fig. 1, are rigidly securedapproximately rectangular supplemental bearing frames 2, which parts 1and 2 are preferably constructed of angle iron. The binder deck 3extends between and is suitably supported by the supplemental frame bars2 and is provided with the usual slot 4 for the passage therethrough ofthe binder needle. The grain is elevated from the harvester platform tothe binder deck 3 by a pair of cooperating elevator canvases or belts 5and 6 mounted and operating in the usual way. As shown, one of therollers for supporting and driving the canvas 5 is provided with asprocket 7 and one of the rollers for guiding and driving the belt 6 isprovided with a sprocket 8.

The needle 9, as is customary, is secured to one end of a needle shaft10 and works through the slot 4 in the binder deck 3, being normallyheld with its point below the said deck. This needle shaft 10 is mountedin bearings 11 secured to bearing brackets 12 which, in turn, arerigidly connected to the framework made up of the heretofore noted parts1 and 2. The needle shaft 10 projects from the needle toward the leftwith respect to Fig. 2, and at its projecting end is rovided with acrank 13. The tripper hea 14 is, as is customary, located in thevertical plane of the needle for proper coperation therewith in thebinding action, and it is, as shown, secured to one end of a rock shaft15 that projects therefrom toward the right with respect to Fig. 2, andis provided at its right hand end with a radially projecting lock arm16. Normally, the free end of this lock arm 16 is engaged and held up bya bevel n hook 17 carried by the lower end of a lockbolt or bar 1S. Thelower end of this lock bolt 1S is mounted to slide and to move edgewisethrough a guide bracket 19 shown as formed as part of a bearing 20 thatis rigidly secured to one of the frame bars 2. A guide rod 21 is rigidlysecured at its lower end to the bearing 2() and on the upper end thereofis slidably mounted a bearing sleeve 22 that is rigidly secured to theintermediate portion of the lock bolt 18. A stop, shown as afforded bynuts 23 on the upper end of the guide bolt 21 (see particularly Fig. S)limits the upward movement of the sleeve 22 and, hence, of the lock bolt1S. A coiled spring 24 on the rod 21 reacts against the sleeve 22provided with a half clutch 37.

and against an adjustable nut 25 on said rodr and yieldingly maintainsthe lock bolt 18 in its uppermost position, shown in Figs. 1 and 8. Atits upper end, the lock bolt 18 is provided with a curved clutchreleasing cam 26, the construction and operation of which will behereinafter more fully described.

When the lock bolt 18 is moved downward by an outward movement of thetripping head 14 and downward movement of the lock arm 16, the bevelhook 17 at the endof said lock bar will be thrown against a releasingabutment or cam projection 27 on the adjacent frame bar 2 and willthereby be moved edgewise out of engagement with the free end of saidlock arm 16. When the lock arm 16 is thus released it drops onto theupper free end of a so-called intercepting stop, shown as in the form ofa spring arm 28, the lower end of which is secured to the adjacent framebar 2, and the upper end of which is bent laterally for engagement Withthe free end of said arm 16.

The binder shaft 29 is mounted in suitable bearings 30 on the frame bars2, and at its left hand end, as shown in Fig. 2, is provided with acrank 31 that is connected by a crank rod 32 to the needle shaft crank13. The crank 31 is relatively short as compared with the crank 13, sothat under a complete rotary movement of the crank 31, the crank 13 and,hence, the needle, will be given oscillatory movements throughconsiderably less than 180 degrees. A pair of bundle discharging arms 33are secured to and carried by the intermediate portion of the bindershaft 29, and secured to said shaft between said arms is the usualsegmental knotter actuating cam 34. The knotter, which is preferably ofstandard construction, is not shown in the drawings, but is preferablymounted in the usual Way above a breast plate 35 of usual form andarrangement.

Loosely mounted on the right hand end of the binder shaft 29, as shownin Fig. 2, is a constantly driven sprocket 36 which is This half clutch37 coperates with a half clutch 38 that is keyed for rotation with butis free to slide upon the binder shaft 29. The half, clutch 38 isyieldingly pressed toward the half clutch 37 by a coiled spring 39 thatreacts against the same and against a stop collar 40 on the eXtremeright hand end of said shaft 29. The sliding half clutch 38 is providedwith a radially projecting stop pin 41 and with a laterally projectingcam lug 42. Slidably mounted in a suitable guide bracket 43 of whichstop collar 40 forms a part, and secured to one of the frame bars 2 is aclutch tripping device in the form of a short slide 44 having aprojecting cam lug 45. The crooked or cam end 26 of the lock bolt 18works through a suitable passage 44a in the sliding stop 44. Also, thesaid cam end 26 works between the guide bracket 43 and a guide pin 43J1which is secured to and projects from said bracket (see Figs.1,4 and 6).

Directing attention now particularly to Figs. 2 and 10, it will be notedthat the needle carries a forwardly projecting arm 46, the free end ofwhich is bent downward and lat erally to form a base of reaction for acoiled spring 47. The upper end of this coiled spring 47 presses againstthe laterally bent end of a supplemental arm 48 that is pivotallyconnected to the arm 46 at 48'. The spring 47 best tends to keep thesupplemental arm 48 pressed upward against a lug 14a on one side of thetripping head 14, and thus yieldingly holds the latter in its normalposition, shown in Figs. 1 and 10.

The free end of the laterally movable intercepting stop 28 is connectedby a wire or other iieXible connection 49 to a cam actuated arm 50which, as shown in Fig. 9, is pivoted to a projection 51 of one of theframe bars 2. This wire 49 runs over al guide sheave 52 mounted in thesaid frame bar 2. The lever 50 is subject to a cam or tappet 53 carriedby the binder shaft 29.

Extending transversely of the machine at the front of the binder shaftand mounted in suitable bearings on the upper portions of the frame bars2, is a packer driving crank shaft 54, and at its right hand end withrespect to Fig. 2 and as shown in Fig. 1, is provided with a sprocket55. Rising from the intermediate upper portion of the frame bars 2 andrigidly secured thereto is a pair of frame extensions 56, the upperportions ofwhich rigidly support a transverse rod 57. On this rod 57 aremounted oscillatory guides 58 that are spaced apart by sleeves or pipesections 59 placed on said rod 57. The packer arms 60 are mounted attheir intermediate portions on the cranks of the shaft 54, and at theirupper ends they are mounted to slide through the oscillatory guides 58.At their lower ends, the packer arms 60 are preferably forked, as shownin Fig. 2. The packer arms 60 are mounted in pairs on the crank shaft54, in such a manner that two arms, one on each side of the needle, packin unison, thus giving an even broadside motion to the grain to andagainst the head 14.

The driving connections, in so far as they relate to this invention, areas follows: The numeral 61 indicates a sprocket chain that runs oversprockets 62 and 63 suitably mounted on the platform section of themachine. The sprocket 62 will usually be driven from the bull wheel ortraction wheel (not shown) of the machine in the customary way. Thesprocket 63 carries a smaller sprocket 64. A sprocket chain 65 runs overthe sprockets 64, 8, 7, 55 and 36 already noted and, as shown, also oversprockets 66 and 67 suitably mounted on the platform of the machine.

When the machine is in action, the grain delivered onto the binder deck3 by the elevator belts 5 and 6 will be engaged by the packer arms 60and forced against the tripping head 14. When the pressure against thetripping head 14 becomes great enough to overcome the tension of thespring 24 and also a slight tension exerted by the spring 47, saidtripping head will be forced outward and its lock arm 16 will be forceddownward, thereby moving the lock bolt 18 downward until its bevel lockhook 17 is pressed against the tripping abutment 27 and released fromsaid arm 16, as already described. Normally, the stop pin 41 and cam lug42 of the sliding half-clutch 38 are engaged, respectively, with theslide 44 and lug 45 thereof, so that said half clutch is held againstrotation and out of engagement with the half clutch 37 of the constantlydriven sprocket 36, as shown in Figs. 4 and 6. Vhen, however, the lockbolt 18 is moved downward as just stated, the slide 44 is moved rearwardand the said half clutch 38 is released and by its spring 39 is forcedinto engagement with said half clutch 37 thereby coupling the bindershaft 29 to the said driven sprocket 36. As soon, however, as the lockbolt 18 is released from the lock lever 16 by the abutment 27, thespring 24 will throw the said lock bolt 18 back to its normal positionand the said bolt will force the slide 44 again forward into its normalposition shown in Fig. 5, so that just before the binder shaft 29completes its rotation, the cam lug 42 by engagement with the stop lug45 of the slide 44 will force the half clutch 38 out of engagement withthe constantly running half clutch 37, and as soon as this separation ofthe clutch members is completed the stop pin 41, by engagement with theslide 44, will ositively stop further rotation of the said binder shaft.l/Vhile the binder shaft is making its complete rotation the needle isthrown upward, the knot is tied, the needle is returned to normalpositions and the tied bundle is discharged by the discharge arms.

Vhen the lock arm 16 is released from the lock bolt 18 as abovedescribed, it falls onto the intercepting stop 28 so that the trippinghead. is held in a position but little farther outward than shown in Fig. 1 in which position it cooperates with the needle to compress thebundle while it is being tied. At the time in the rotation of the bindershaft immediately after the knot has been tied, the cam or tappet 53comes into engagement with the arm 50 and raises the same, vtherebydrawing the intercei'iting stop 28 inward and permitting the trippinghead 14 to be moved below the plane of the binder deck 3 at a time whenthe discharge arms 33 are forcing the bound bundle out of the binder.When the needle is returned toits normal position below the binder deck,the spring pressed supplemental arm 48 engages the tripping head 14 andforces the same back to its normal position, under which movement thelock arm 16 cams itself past and .into a position above the interceptingstop 28.

The spring 47 interposed between the arm 46 and supplemental arm 48carried by the needle permits the initial movement of the packet head 14required to trip the driving clutch mechanism into action while Atheneedle remains stationary in its normal position, and it serves underreturn movement of tho needle from its operative to its normal to insurethe complete movement of said packer to its normal position.

.lt is evident that by adjustments of the nut 25 on the guide bolt 21the tension of the spring 24 may be increased or diminished. Hence thepressure of the grain against the trip head necessary to trip the needleinto action is controlled. By this means the size and compaetness of thebundles may be altered as desired.

Vhat I claim is.

1. In a grain hinder, the combination with a needle, packers and meansfor discharging the bound bundles, of binder driving means, a onerevolution clutch for causing said driving means to intermittentlyoperate said needle and bundle discharging means with properly timedactions, a pivoted tripping head having a projecting lock arm, a springpressed lock bolt normally engaging said lock arm and holding'saidtripping head in normal position, means whereby a movement of said lockholt throws said clutch into action, and means for releasing the saidlock bolt from said lock arm after said clutch has been thrown intoaction by initial movement of said tripping head, substantially asdescribed.

2. In a grain binder, the combination with a needle, packers, a bindershaft, and a discharge arm and knetter actuating means carried by saidshaft, of coperating half clutches on said shaft, one of which is looseand is continuously driven, and the other of which is rotatable withsaid shaft, a pivoted tripping head, a sliding clutch stop forseparating the clutch members at the completion of each rotation of saidbinder shaft, a spring pressed bolt arranged to be moved by saidtripping head, and when moved to cause said clutch stop to render saidclutch operative, substantially as described.

3. ln a grain binder, the combination with a needle, packers and bindershaft, said shaft having a bundle discharge arm, a continuously drivenwheel loosely mounted on said shaft and provided with a half clutch, acooperating spring pressed half clutch slidably mounted on said shaft,said sliding half clutch having a laterally projectii'ig cam lug 42 andstop 41, a sliding stop 44 engageable with said stop 41 and having a lug45 engageable with said cam lug 42, to throw said sliding half clutchont of engagement with said continuously driven half clutch, tointercept the movement of the same and said binder shaft, a trippinghead and connections whereby initial movement of said tripping headmoves said sliding stop into an inoperative position, substantially'asdescribed.

4L In a grain binder, the combination with a needle, packers, a pivotedtripping head and a binder shaft, which binder shaft is provided with abundle discharging arm and means for actuating a knetter, of acontinuously driven wheel, a one revolution clutch for intermittentlyconnecting said wheel to said binder shaft, a lock arm movable with saidtripping head, a spring pressed lock bolt normally holding said lock armand having a cam acting end serving, when moved, to render said clutchoperative, a tripping abutment operating to release said lock bolt fromsaid lock arm under initial movement of said tripping head, anintercepting stop operative on said lock arm to intercept the movementof the same and said tripping headand a connection operated' from saidbinder shaft for withdrawing said intercepting lstop from said lock arm,to thereby permit further movement of said tripping head during thebundle discharging action, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

AMANDUS M. HEMBERG.

'Vitnesses:

I-l. D. KILGORE, M. E. RONEY.

